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Finding the Fourth Proportional to 548,565.64, 757,090.50 and 306,861.64

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Solution

The fourth proportional to 548,565.64, 757,090.50 and 306,861.64 is: 423,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,565.64 : 757,090.50 = 306,861.64 : x
  2. Step 2: Convert to fraction form
    548,565.64/757,090.50 = 306,861.64/x
  3. Step 3: Cross multiply
    548,565.64x = 757,090.50 × 306,861.64
  4. Step 4: Simplify right side
    548,565.64x = 232,322,032,458.42
  5. Step 5: Solve for x
    x = 232,322,032,458.42/548,565.64
  6. Step 6: Final answer
    x = 423,508.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.